Be very careful with the linked account. I had Etrade link the new Wit account to my other four accounts. Yesterday, every time I tried to make a trade from my main account the trade would get cancelled due to insufficient funds even though my account had cash in it. The reason was because even though the account was set to the one I wanted to trade out of (my main account) it kept defaulting to my new Wit account that they recently linked. Even if I reset the accounts it kept happening. Etrade told me last night that they found the problem and it should be fixed by today.Just beware!